Thermal diffusion in the modified Frazier schemes with column heights varied at a constant increment for improved performance |
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| Authors: | Ho-Ming Yeh Zheng-Xiu Tsai Ching Chun Hsu |
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| Affiliation: | a Energy and Opto-Electronic Materials Research Center, Department of Chemical and Materials Engineering, Tamkang University, Tamsui, Taipei County, 251, Taiwan |
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| Abstract: | The effects of column number and column-height increment on the degree of separation in the modified Frazier scheme of thermal diffusion columns with the total sum of column heights fixed, has been investigated. The equations, which may be employed to predict the optimal column number and the optimal column-height increment for the maximum separation, have been derived. Considerable improvement in performance is obtainable if the column number and column-height increment in a modified Frazier scheme with the total sum of column heights fixed, are properly assigned under a certain flow-rate operation, instead of using the conventional Frazier scheme of constant column height with the same total sum of column heights. |
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| Keywords: | Thermal diffusion Modified Frazier scheme Increasing column height |
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